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frontend/node_modules/echarts/lib/coord/cartesian/Axis2D.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import Axis from '../Axis.js';
+var Axis2D = /** @class */function (_super) {
+  __extends(Axis2D, _super);
+  function Axis2D(dim, scale, coordExtent, axisType, position) {
+    var _this = _super.call(this, dim, scale, coordExtent) || this;
+    /**
+     * Index of axis, can be used as key
+     * Injected outside.
+     */
+    _this.index = 0;
+    _this.type = axisType || 'value';
+    _this.position = position || 'bottom';
+    return _this;
+  }
+  Axis2D.prototype.isHorizontal = function () {
+    var position = this.position;
+    return position === 'top' || position === 'bottom';
+  };
+  /**
+   * Each item cooresponds to this.getExtent(), which
+   * means globalExtent[0] may greater than globalExtent[1],
+   * unless `asc` is input.
+   *
+   * @param {boolean} [asc]
+   * @return {Array.<number>}
+   */
+  Axis2D.prototype.getGlobalExtent = function (asc) {
+    var ret = this.getExtent();
+    ret[0] = this.toGlobalCoord(ret[0]);
+    ret[1] = this.toGlobalCoord(ret[1]);
+    asc && ret[0] > ret[1] && ret.reverse();
+    return ret;
+  };
+  Axis2D.prototype.pointToData = function (point, clamp) {
+    return this.coordToData(this.toLocalCoord(point[this.dim === 'x' ? 0 : 1]), clamp);
+  };
+  /**
+   * Set ordinalSortInfo
+   * @param info new OrdinalSortInfo
+   */
+  Axis2D.prototype.setCategorySortInfo = function (info) {
+    if (this.type !== 'category') {
+      return false;
+    }
+    this.model.option.categorySortInfo = info;
+    this.scale.setSortInfo(info);
+  };
+  return Axis2D;
+}(Axis);
+export default Axis2D;

frontend/node_modules/echarts/lib/coord/cartesian/AxisModel.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import * as zrUtil from 'zrender/lib/core/util.js';
+import ComponentModel from '../../model/Component.js';
+import { AxisModelCommonMixin } from '../axisModelCommonMixin.js';
+import { SINGLE_REFERRING } from '../../util/model.js';
+var CartesianAxisModel = /** @class */function (_super) {
+  __extends(CartesianAxisModel, _super);
+  function CartesianAxisModel() {
+    return _super !== null && _super.apply(this, arguments) || this;
+  }
+  CartesianAxisModel.prototype.getCoordSysModel = function () {
+    return this.getReferringComponents('grid', SINGLE_REFERRING).models[0];
+  };
+  CartesianAxisModel.type = 'cartesian2dAxis';
+  return CartesianAxisModel;
+}(ComponentModel);
+export { CartesianAxisModel };
+zrUtil.mixin(CartesianAxisModel, AxisModelCommonMixin);
+export default CartesianAxisModel;

frontend/node_modules/echarts/lib/coord/cartesian/Cartesian.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+var Cartesian = /** @class */function () {
+  function Cartesian(name) {
+    this.type = 'cartesian';
+    this._dimList = [];
+    this._axes = {};
+    this.name = name || '';
+  }
+  Cartesian.prototype.getAxis = function (dim) {
+    return this._axes[dim];
+  };
+  Cartesian.prototype.getAxes = function () {
+    return zrUtil.map(this._dimList, function (dim) {
+      return this._axes[dim];
+    }, this);
+  };
+  Cartesian.prototype.getAxesByScale = function (scaleType) {
+    scaleType = scaleType.toLowerCase();
+    return zrUtil.filter(this.getAxes(), function (axis) {
+      return axis.scale.type === scaleType;
+    });
+  };
+  Cartesian.prototype.addAxis = function (axis) {
+    var dim = axis.dim;
+    this._axes[dim] = axis;
+    this._dimList.push(dim);
+  };
+  return Cartesian;
+}();
+;
+export default Cartesian;

frontend/node_modules/echarts/lib/coord/cartesian/Cartesian2D.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import BoundingRect from 'zrender/lib/core/BoundingRect.js';
+import Cartesian from './Cartesian.js';
+import { invert } from 'zrender/lib/core/matrix.js';
+import { applyTransform } from 'zrender/lib/core/vector.js';
+export var cartesian2DDimensions = ['x', 'y'];
+function canCalculateAffineTransform(scale) {
+  return scale.type === 'interval' || scale.type === 'time';
+}
+var Cartesian2D = /** @class */function (_super) {
+  __extends(Cartesian2D, _super);
+  function Cartesian2D() {
+    var _this = _super !== null && _super.apply(this, arguments) || this;
+    _this.type = 'cartesian2d';
+    _this.dimensions = cartesian2DDimensions;
+    return _this;
+  }
+  /**
+   * Calculate an affine transform matrix if two axes are time or value.
+   * It's mainly for accelartion on the large time series data.
+   */
+  Cartesian2D.prototype.calcAffineTransform = function () {
+    this._transform = this._invTransform = null;
+    var xAxisScale = this.getAxis('x').scale;
+    var yAxisScale = this.getAxis('y').scale;
+    if (!canCalculateAffineTransform(xAxisScale) || !canCalculateAffineTransform(yAxisScale)) {
+      return;
+    }
+    var xScaleExtent = xAxisScale.getExtent();
+    var yScaleExtent = yAxisScale.getExtent();
+    var start = this.dataToPoint([xScaleExtent[0], yScaleExtent[0]]);
+    var end = this.dataToPoint([xScaleExtent[1], yScaleExtent[1]]);
+    var xScaleSpan = xScaleExtent[1] - xScaleExtent[0];
+    var yScaleSpan = yScaleExtent[1] - yScaleExtent[0];
+    if (!xScaleSpan || !yScaleSpan) {
+      return;
+    }
+    // Accelerate data to point calculation on the special large time series data.
+    var scaleX = (end[0] - start[0]) / xScaleSpan;
+    var scaleY = (end[1] - start[1]) / yScaleSpan;
+    var translateX = start[0] - xScaleExtent[0] * scaleX;
+    var translateY = start[1] - yScaleExtent[0] * scaleY;
+    var m = this._transform = [scaleX, 0, 0, scaleY, translateX, translateY];
+    this._invTransform = invert([], m);
+  };
+  /**
+   * Base axis will be used on stacking.
+   */
+  Cartesian2D.prototype.getBaseAxis = function () {
+    return this.getAxesByScale('ordinal')[0] || this.getAxesByScale('time')[0] || this.getAxis('x');
+  };
+  Cartesian2D.prototype.containPoint = function (point) {
+    var axisX = this.getAxis('x');
+    var axisY = this.getAxis('y');
+    return axisX.contain(axisX.toLocalCoord(point[0])) && axisY.contain(axisY.toLocalCoord(point[1]));
+  };
+  Cartesian2D.prototype.containData = function (data) {
+    return this.getAxis('x').containData(data[0]) && this.getAxis('y').containData(data[1]);
+  };
+  Cartesian2D.prototype.containZone = function (data1, data2) {
+    var zoneDiag1 = this.dataToPoint(data1);
+    var zoneDiag2 = this.dataToPoint(data2);
+    var area = this.getArea();
+    var zone = new BoundingRect(zoneDiag1[0], zoneDiag1[1], zoneDiag2[0] - zoneDiag1[0], zoneDiag2[1] - zoneDiag1[1]);
+    return area.intersect(zone);
+  };
+  Cartesian2D.prototype.dataToPoint = function (data, clamp, out) {
+    out = out || [];
+    var xVal = data[0];
+    var yVal = data[1];
+    // Fast path
+    if (this._transform
+    // It's supported that if data is like `[Inifity, 123]`, where only Y pixel calculated.
+    && xVal != null && isFinite(xVal) && yVal != null && isFinite(yVal)) {
+      return applyTransform(out, data, this._transform);
+    }
+    var xAxis = this.getAxis('x');
+    var yAxis = this.getAxis('y');
+    out[0] = xAxis.toGlobalCoord(xAxis.dataToCoord(xVal, clamp));
+    out[1] = yAxis.toGlobalCoord(yAxis.dataToCoord(yVal, clamp));
+    return out;
+  };
+  Cartesian2D.prototype.clampData = function (data, out) {
+    var xScale = this.getAxis('x').scale;
+    var yScale = this.getAxis('y').scale;
+    var xAxisExtent = xScale.getExtent();
+    var yAxisExtent = yScale.getExtent();
+    var x = xScale.parse(data[0]);
+    var y = yScale.parse(data[1]);
+    out = out || [];
+    out[0] = Math.min(Math.max(Math.min(xAxisExtent[0], xAxisExtent[1]), x), Math.max(xAxisExtent[0], xAxisExtent[1]));
+    out[1] = Math.min(Math.max(Math.min(yAxisExtent[0], yAxisExtent[1]), y), Math.max(yAxisExtent[0], yAxisExtent[1]));
+    return out;
+  };
+  Cartesian2D.prototype.pointToData = function (point, clamp) {
+    var out = [];
+    if (this._invTransform) {
+      return applyTransform(out, point, this._invTransform);
+    }
+    var xAxis = this.getAxis('x');
+    var yAxis = this.getAxis('y');
+    out[0] = xAxis.coordToData(xAxis.toLocalCoord(point[0]), clamp);
+    out[1] = yAxis.coordToData(yAxis.toLocalCoord(point[1]), clamp);
+    return out;
+  };
+  Cartesian2D.prototype.getOtherAxis = function (axis) {
+    return this.getAxis(axis.dim === 'x' ? 'y' : 'x');
+  };
+  /**
+   * Get rect area of cartesian.
+   * Area will have a contain function to determine if a point is in the coordinate system.
+   */
+  Cartesian2D.prototype.getArea = function (tolerance) {
+    tolerance = tolerance || 0;
+    var xExtent = this.getAxis('x').getGlobalExtent();
+    var yExtent = this.getAxis('y').getGlobalExtent();
+    var x = Math.min(xExtent[0], xExtent[1]) - tolerance;
+    var y = Math.min(yExtent[0], yExtent[1]) - tolerance;
+    var width = Math.max(xExtent[0], xExtent[1]) - x + tolerance;
+    var height = Math.max(yExtent[0], yExtent[1]) - y + tolerance;
+    return new BoundingRect(x, y, width, height);
+  };
+  return Cartesian2D;
+}(Cartesian);
+;
+export default Cartesian2D;

frontend/node_modules/echarts/lib/coord/cartesian/Grid.js

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+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+/**
+ * Grid is a region which contains at most 4 cartesian systems
+ *
+ * TODO Default cartesian
+ */
+import { isObject, each, indexOf, retrieve3, keys } from 'zrender/lib/core/util.js';
+import { getLayoutRect } from '../../util/layout.js';
+import { createScaleByModel, ifAxisCrossZero, niceScaleExtent, estimateLabelUnionRect, getDataDimensionsOnAxis } from '../../coord/axisHelper.js';
+import Cartesian2D, { cartesian2DDimensions } from './Cartesian2D.js';
+import Axis2D from './Axis2D.js';
+import { SINGLE_REFERRING } from '../../util/model.js';
+import { isCartesian2DSeries, findAxisModels } from './cartesianAxisHelper.js';
+import { isIntervalOrLogScale } from '../../scale/helper.js';
+import { alignScaleTicks } from '../axisAlignTicks.js';
+var Grid = /** @class */function () {
+  function Grid(gridModel, ecModel, api) {
+    // FIXME:TS where used (different from registered type 'cartesian2d')?
+    this.type = 'grid';
+    this._coordsMap = {};
+    this._coordsList = [];
+    this._axesMap = {};
+    this._axesList = [];
+    this.axisPointerEnabled = true;
+    this.dimensions = cartesian2DDimensions;
+    this._initCartesian(gridModel, ecModel, api);
+    this.model = gridModel;
+  }
+  Grid.prototype.getRect = function () {
+    return this._rect;
+  };
+  Grid.prototype.update = function (ecModel, api) {
+    var axesMap = this._axesMap;
+    this._updateScale(ecModel, this.model);
+    function updateAxisTicks(axes) {
+      var alignTo;
+      // Axis is added in order of axisIndex.
+      var axesIndices = keys(axes);
+      var len = axesIndices.length;
+      if (!len) {
+        return;
+      }
+      var axisNeedsAlign = [];
+      // Process once and calculate the ticks for those don't use alignTicks.
+      for (var i = len - 1; i >= 0; i--) {
+        var idx = +axesIndices[i]; // Convert to number.
+        var axis = axes[idx];
+        var model = axis.model;
+        var scale = axis.scale;
+        if (
+        // Only value and log axis without interval support alignTicks.
+        isIntervalOrLogScale(scale) && model.get('alignTicks') && model.get('interval') == null) {
+          axisNeedsAlign.push(axis);
+        } else {
+          niceScaleExtent(scale, model);
+          if (isIntervalOrLogScale(scale)) {
+            // Can only align to interval or log axis.
+            alignTo = axis;
+          }
+        }
+      }
+      ;
+      // All axes has set alignTicks. Pick the first one.
+      // PENDING. Should we find the axis that both set interval, min, max and align to this one?
+      if (axisNeedsAlign.length) {
+        if (!alignTo) {
+          alignTo = axisNeedsAlign.pop();
+          niceScaleExtent(alignTo.scale, alignTo.model);
+        }
+        each(axisNeedsAlign, function (axis) {
+          alignScaleTicks(axis.scale, axis.model, alignTo.scale);
+        });
+      }
+    }
+    updateAxisTicks(axesMap.x);
+    updateAxisTicks(axesMap.y);
+    // Key: axisDim_axisIndex, value: boolean, whether onZero target.
+    var onZeroRecords = {};
+    each(axesMap.x, function (xAxis) {
+      fixAxisOnZero(axesMap, 'y', xAxis, onZeroRecords);
+    });
+    each(axesMap.y, function (yAxis) {
+      fixAxisOnZero(axesMap, 'x', yAxis, onZeroRecords);
+    });
+    // Resize again if containLabel is enabled
+    // FIXME It may cause getting wrong grid size in data processing stage
+    this.resize(this.model, api);
+  };
+  /**
+   * Resize the grid
+   */
+  Grid.prototype.resize = function (gridModel, api, ignoreContainLabel) {
+    var boxLayoutParams = gridModel.getBoxLayoutParams();
+    var isContainLabel = !ignoreContainLabel && gridModel.get('containLabel');
+    var gridRect = getLayoutRect(boxLayoutParams, {
+      width: api.getWidth(),
+      height: api.getHeight()
+    });
+    this._rect = gridRect;
+    var axesList = this._axesList;
+    adjustAxes();
+    // Minus label size
+    if (isContainLabel) {
+      each(axesList, function (axis) {
+        if (!axis.model.get(['axisLabel', 'inside'])) {
+          var labelUnionRect = estimateLabelUnionRect(axis);
+          if (labelUnionRect) {
+            var dim = axis.isHorizontal() ? 'height' : 'width';
+            var margin = axis.model.get(['axisLabel', 'margin']);
+            gridRect[dim] -= labelUnionRect[dim] + margin;
+            if (axis.position === 'top') {
+              gridRect.y += labelUnionRect.height + margin;
+            } else if (axis.position === 'left') {
+              gridRect.x += labelUnionRect.width + margin;
+            }
+          }
+        }
+      });
+      adjustAxes();
+    }
+    each(this._coordsList, function (coord) {
+      // Calculate affine matrix to accelerate the data to point transform.
+      // If all the axes scales are time or value.
+      coord.calcAffineTransform();
+    });
+    function adjustAxes() {
+      each(axesList, function (axis) {
+        var isHorizontal = axis.isHorizontal();
+        var extent = isHorizontal ? [0, gridRect.width] : [0, gridRect.height];
+        var idx = axis.inverse ? 1 : 0;
+        axis.setExtent(extent[idx], extent[1 - idx]);
+        updateAxisTransform(axis, isHorizontal ? gridRect.x : gridRect.y);
+      });
+    }
+  };
+  Grid.prototype.getAxis = function (dim, axisIndex) {
+    var axesMapOnDim = this._axesMap[dim];
+    if (axesMapOnDim != null) {
+      return axesMapOnDim[axisIndex || 0];
+    }
+  };
+  Grid.prototype.getAxes = function () {
+    return this._axesList.slice();
+  };
+  Grid.prototype.getCartesian = function (xAxisIndex, yAxisIndex) {
+    if (xAxisIndex != null && yAxisIndex != null) {
+      var key = 'x' + xAxisIndex + 'y' + yAxisIndex;
+      return this._coordsMap[key];
+    }
+    if (isObject(xAxisIndex)) {
+      yAxisIndex = xAxisIndex.yAxisIndex;
+      xAxisIndex = xAxisIndex.xAxisIndex;
+    }
+    for (var i = 0, coordList = this._coordsList; i < coordList.length; i++) {
+      if (coordList[i].getAxis('x').index === xAxisIndex || coordList[i].getAxis('y').index === yAxisIndex) {
+        return coordList[i];
+      }
+    }
+  };
+  Grid.prototype.getCartesians = function () {
+    return this._coordsList.slice();
+  };
+  /**
+   * @implements
+   */
+  Grid.prototype.convertToPixel = function (ecModel, finder, value) {
+    var target = this._findConvertTarget(finder);
+    return target.cartesian ? target.cartesian.dataToPoint(value) : target.axis ? target.axis.toGlobalCoord(target.axis.dataToCoord(value)) : null;
+  };
+  /**
+   * @implements
+   */
+  Grid.prototype.convertFromPixel = function (ecModel, finder, value) {
+    var target = this._findConvertTarget(finder);
+    return target.cartesian ? target.cartesian.pointToData(value) : target.axis ? target.axis.coordToData(target.axis.toLocalCoord(value)) : null;
+  };
+  Grid.prototype._findConvertTarget = function (finder) {
+    var seriesModel = finder.seriesModel;
+    var xAxisModel = finder.xAxisModel || seriesModel && seriesModel.getReferringComponents('xAxis', SINGLE_REFERRING).models[0];
+    var yAxisModel = finder.yAxisModel || seriesModel && seriesModel.getReferringComponents('yAxis', SINGLE_REFERRING).models[0];
+    var gridModel = finder.gridModel;
+    var coordsList = this._coordsList;
+    var cartesian;
+    var axis;
+    if (seriesModel) {
+      cartesian = seriesModel.coordinateSystem;
+      indexOf(coordsList, cartesian) < 0 && (cartesian = null);
+    } else if (xAxisModel && yAxisModel) {
+      cartesian = this.getCartesian(xAxisModel.componentIndex, yAxisModel.componentIndex);
+    } else if (xAxisModel) {
+      axis = this.getAxis('x', xAxisModel.componentIndex);
+    } else if (yAxisModel) {
+      axis = this.getAxis('y', yAxisModel.componentIndex);
+    }
+    // Lowest priority.
+    else if (gridModel) {
+      var grid = gridModel.coordinateSystem;
+      if (grid === this) {
+        cartesian = this._coordsList[0];
+      }
+    }
+    return {
+      cartesian: cartesian,
+      axis: axis
+    };
+  };
+  /**
+   * @implements
+   */
+  Grid.prototype.containPoint = function (point) {
+    var coord = this._coordsList[0];
+    if (coord) {
+      return coord.containPoint(point);
+    }
+  };
+  /**
+   * Initialize cartesian coordinate systems
+   */
+  Grid.prototype._initCartesian = function (gridModel, ecModel, api) {
+    var _this = this;
+    var grid = this;
+    var axisPositionUsed = {
+      left: false,
+      right: false,
+      top: false,
+      bottom: false
+    };
+    var axesMap = {
+      x: {},
+      y: {}
+    };
+    var axesCount = {
+      x: 0,
+      y: 0
+    };
+    // Create axis
+    ecModel.eachComponent('xAxis', createAxisCreator('x'), this);
+    ecModel.eachComponent('yAxis', createAxisCreator('y'), this);
+    if (!axesCount.x || !axesCount.y) {
+      // Roll back when there no either x or y axis
+      this._axesMap = {};
+      this._axesList = [];
+      return;
+    }
+    this._axesMap = axesMap;
+    // Create cartesian2d
+    each(axesMap.x, function (xAxis, xAxisIndex) {
+      each(axesMap.y, function (yAxis, yAxisIndex) {
+        var key = 'x' + xAxisIndex + 'y' + yAxisIndex;
+        var cartesian = new Cartesian2D(key);
+        cartesian.master = _this;
+        cartesian.model = gridModel;
+        _this._coordsMap[key] = cartesian;
+        _this._coordsList.push(cartesian);
+        cartesian.addAxis(xAxis);
+        cartesian.addAxis(yAxis);
+      });
+    });
+    function createAxisCreator(dimName) {
+      return function (axisModel, idx) {
+        if (!isAxisUsedInTheGrid(axisModel, gridModel)) {
+          return;
+        }
+        var axisPosition = axisModel.get('position');
+        if (dimName === 'x') {
+          // Fix position
+          if (axisPosition !== 'top' && axisPosition !== 'bottom') {
+            // Default bottom of X
+            axisPosition = axisPositionUsed.bottom ? 'top' : 'bottom';
+          }
+        } else {
+          // Fix position
+          if (axisPosition !== 'left' && axisPosition !== 'right') {
+            // Default left of Y
+            axisPosition = axisPositionUsed.left ? 'right' : 'left';
+          }
+        }
+        axisPositionUsed[axisPosition] = true;
+        var axis = new Axis2D(dimName, createScaleByModel(axisModel), [0, 0], axisModel.get('type'), axisPosition);
+        var isCategory = axis.type === 'category';
+        axis.onBand = isCategory && axisModel.get('boundaryGap');
+        axis.inverse = axisModel.get('inverse');
+        // Inject axis into axisModel
+        axisModel.axis = axis;
+        // Inject axisModel into axis
+        axis.model = axisModel;
+        // Inject grid info axis
+        axis.grid = grid;
+        // Index of axis, can be used as key
+        axis.index = idx;
+        grid._axesList.push(axis);
+        axesMap[dimName][idx] = axis;
+        axesCount[dimName]++;
+      };
+    }
+  };
+  /**
+   * Update cartesian properties from series.
+   */
+  Grid.prototype._updateScale = function (ecModel, gridModel) {
+    // Reset scale
+    each(this._axesList, function (axis) {
+      axis.scale.setExtent(Infinity, -Infinity);
+      if (axis.type === 'category') {
+        var categorySortInfo = axis.model.get('categorySortInfo');
+        axis.scale.setSortInfo(categorySortInfo);
+      }
+    });
+    ecModel.eachSeries(function (seriesModel) {
+      if (isCartesian2DSeries(seriesModel)) {
+        var axesModelMap = findAxisModels(seriesModel);
+        var xAxisModel = axesModelMap.xAxisModel;
+        var yAxisModel = axesModelMap.yAxisModel;
+        if (!isAxisUsedInTheGrid(xAxisModel, gridModel) || !isAxisUsedInTheGrid(yAxisModel, gridModel)) {
+          return;
+        }
+        var cartesian = this.getCartesian(xAxisModel.componentIndex, yAxisModel.componentIndex);
+        var data = seriesModel.getData();
+        var xAxis = cartesian.getAxis('x');
+        var yAxis = cartesian.getAxis('y');
+        unionExtent(data, xAxis);
+        unionExtent(data, yAxis);
+      }
+    }, this);
+    function unionExtent(data, axis) {
+      each(getDataDimensionsOnAxis(data, axis.dim), function (dim) {
+        axis.scale.unionExtentFromData(data, dim);
+      });
+    }
+  };
+  /**
+   * @param dim 'x' or 'y' or 'auto' or null/undefined
+   */
+  Grid.prototype.getTooltipAxes = function (dim) {
+    var baseAxes = [];
+    var otherAxes = [];
+    each(this.getCartesians(), function (cartesian) {
+      var baseAxis = dim != null && dim !== 'auto' ? cartesian.getAxis(dim) : cartesian.getBaseAxis();
+      var otherAxis = cartesian.getOtherAxis(baseAxis);
+      indexOf(baseAxes, baseAxis) < 0 && baseAxes.push(baseAxis);
+      indexOf(otherAxes, otherAxis) < 0 && otherAxes.push(otherAxis);
+    });
+    return {
+      baseAxes: baseAxes,
+      otherAxes: otherAxes
+    };
+  };
+  Grid.create = function (ecModel, api) {
+    var grids = [];
+    ecModel.eachComponent('grid', function (gridModel, idx) {
+      var grid = new Grid(gridModel, ecModel, api);
+      grid.name = 'grid_' + idx;
+      // dataSampling requires axis extent, so resize
+      // should be performed in create stage.
+      grid.resize(gridModel, api, true);
+      gridModel.coordinateSystem = grid;
+      grids.push(grid);
+    });
+    // Inject the coordinateSystems into seriesModel
+    ecModel.eachSeries(function (seriesModel) {
+      if (!isCartesian2DSeries(seriesModel)) {
+        return;
+      }
+      var axesModelMap = findAxisModels(seriesModel);
+      var xAxisModel = axesModelMap.xAxisModel;
+      var yAxisModel = axesModelMap.yAxisModel;
+      var gridModel = xAxisModel.getCoordSysModel();
+      if (process.env.NODE_ENV !== 'production') {
+        if (!gridModel) {
+          throw new Error('Grid "' + retrieve3(xAxisModel.get('gridIndex'), xAxisModel.get('gridId'), 0) + '" not found');
+        }
+        if (xAxisModel.getCoordSysModel() !== yAxisModel.getCoordSysModel()) {
+          throw new Error('xAxis and yAxis must use the same grid');
+        }
+      }
+      var grid = gridModel.coordinateSystem;
+      seriesModel.coordinateSystem = grid.getCartesian(xAxisModel.componentIndex, yAxisModel.componentIndex);
+    });
+    return grids;
+  };
+  // For deciding which dimensions to use when creating list data
+  Grid.dimensions = cartesian2DDimensions;
+  return Grid;
+}();
+/**
+ * Check if the axis is used in the specified grid.
+ */
+function isAxisUsedInTheGrid(axisModel, gridModel) {
+  return axisModel.getCoordSysModel() === gridModel;
+}
+function fixAxisOnZero(axesMap, otherAxisDim, axis,
+// Key: see `getOnZeroRecordKey`
+onZeroRecords) {
+  axis.getAxesOnZeroOf = function () {
+    // TODO: onZero of multiple axes.
+    return otherAxisOnZeroOf ? [otherAxisOnZeroOf] : [];
+  };
+  // onZero can not be enabled in these two situations:
+  // 1. When any other axis is a category axis.
+  // 2. When no axis is cross 0 point.
+  var otherAxes = axesMap[otherAxisDim];
+  var otherAxisOnZeroOf;
+  var axisModel = axis.model;
+  var onZero = axisModel.get(['axisLine', 'onZero']);
+  var onZeroAxisIndex = axisModel.get(['axisLine', 'onZeroAxisIndex']);
+  if (!onZero) {
+    return;
+  }
+  // If target axis is specified.
+  if (onZeroAxisIndex != null) {
+    if (canOnZeroToAxis(otherAxes[onZeroAxisIndex])) {
+      otherAxisOnZeroOf = otherAxes[onZeroAxisIndex];
+    }
+  } else {
+    // Find the first available other axis.
+    for (var idx in otherAxes) {
+      if (otherAxes.hasOwnProperty(idx) && canOnZeroToAxis(otherAxes[idx])
+      // Consider that two Y axes on one value axis,
+      // if both onZero, the two Y axes overlap.
+      && !onZeroRecords[getOnZeroRecordKey(otherAxes[idx])]) {
+        otherAxisOnZeroOf = otherAxes[idx];
+        break;
+      }
+    }
+  }
+  if (otherAxisOnZeroOf) {
+    onZeroRecords[getOnZeroRecordKey(otherAxisOnZeroOf)] = true;
+  }
+  function getOnZeroRecordKey(axis) {
+    return axis.dim + '_' + axis.index;
+  }
+}
+function canOnZeroToAxis(axis) {
+  return axis && axis.type !== 'category' && axis.type !== 'time' && ifAxisCrossZero(axis);
+}
+function updateAxisTransform(axis, coordBase) {
+  var axisExtent = axis.getExtent();
+  var axisExtentSum = axisExtent[0] + axisExtent[1];
+  // Fast transform
+  axis.toGlobalCoord = axis.dim === 'x' ? function (coord) {
+    return coord + coordBase;
+  } : function (coord) {
+    return axisExtentSum - coord + coordBase;
+  };
+  axis.toLocalCoord = axis.dim === 'x' ? function (coord) {
+    return coord - coordBase;
+  } : function (coord) {
+    return axisExtentSum - coord + coordBase;
+  };
+}
+export default Grid;

frontend/node_modules/echarts/lib/coord/cartesian/GridModel.js

@@ -0,0 +1,72 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import { __extends } from "tslib";
+import ComponentModel from '../../model/Component.js';
+var GridModel = /** @class */function (_super) {
+  __extends(GridModel, _super);
+  function GridModel() {
+    return _super !== null && _super.apply(this, arguments) || this;
+  }
+  GridModel.type = 'grid';
+  GridModel.dependencies = ['xAxis', 'yAxis'];
+  GridModel.layoutMode = 'box';
+  GridModel.defaultOption = {
+    show: false,
+    // zlevel: 0,
+    z: 0,
+    left: '10%',
+    top: 60,
+    right: '10%',
+    bottom: 70,
+    // If grid size contain label
+    containLabel: false,
+    // width: {totalWidth} - left - right,
+    // height: {totalHeight} - top - bottom,
+    backgroundColor: 'rgba(0,0,0,0)',
+    borderWidth: 1,
+    borderColor: '#ccc'
+  };
+  return GridModel;
+}(ComponentModel);
+export default GridModel;

frontend/node_modules/echarts/lib/coord/cartesian/cartesianAxisHelper.js

@@ -0,0 +1,119 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+import { SINGLE_REFERRING } from '../../util/model.js';
+/**
+ * Can only be called after coordinate system creation stage.
+ * (Can be called before coordinate system update stage).
+ */
+export function layout(gridModel, axisModel, opt) {
+  opt = opt || {};
+  var grid = gridModel.coordinateSystem;
+  var axis = axisModel.axis;
+  var layout = {};
+  var otherAxisOnZeroOf = axis.getAxesOnZeroOf()[0];
+  var rawAxisPosition = axis.position;
+  var axisPosition = otherAxisOnZeroOf ? 'onZero' : rawAxisPosition;
+  var axisDim = axis.dim;
+  var rect = grid.getRect();
+  var rectBound = [rect.x, rect.x + rect.width, rect.y, rect.y + rect.height];
+  var idx = {
+    left: 0,
+    right: 1,
+    top: 0,
+    bottom: 1,
+    onZero: 2
+  };
+  var axisOffset = axisModel.get('offset') || 0;
+  var posBound = axisDim === 'x' ? [rectBound[2] - axisOffset, rectBound[3] + axisOffset] : [rectBound[0] - axisOffset, rectBound[1] + axisOffset];
+  if (otherAxisOnZeroOf) {
+    var onZeroCoord = otherAxisOnZeroOf.toGlobalCoord(otherAxisOnZeroOf.dataToCoord(0));
+    posBound[idx.onZero] = Math.max(Math.min(onZeroCoord, posBound[1]), posBound[0]);
+  }
+  // Axis position
+  layout.position = [axisDim === 'y' ? posBound[idx[axisPosition]] : rectBound[0], axisDim === 'x' ? posBound[idx[axisPosition]] : rectBound[3]];
+  // Axis rotation
+  layout.rotation = Math.PI / 2 * (axisDim === 'x' ? 0 : 1);
+  // Tick and label direction, x y is axisDim
+  var dirMap = {
+    top: -1,
+    bottom: 1,
+    left: -1,
+    right: 1
+  };
+  layout.labelDirection = layout.tickDirection = layout.nameDirection = dirMap[rawAxisPosition];
+  layout.labelOffset = otherAxisOnZeroOf ? posBound[idx[rawAxisPosition]] - posBound[idx.onZero] : 0;
+  if (axisModel.get(['axisTick', 'inside'])) {
+    layout.tickDirection = -layout.tickDirection;
+  }
+  if (zrUtil.retrieve(opt.labelInside, axisModel.get(['axisLabel', 'inside']))) {
+    layout.labelDirection = -layout.labelDirection;
+  }
+  // Special label rotation
+  var labelRotate = axisModel.get(['axisLabel', 'rotate']);
+  layout.labelRotate = axisPosition === 'top' ? -labelRotate : labelRotate;
+  // Over splitLine and splitArea
+  layout.z2 = 1;
+  return layout;
+}
+export function isCartesian2DSeries(seriesModel) {
+  return seriesModel.get('coordinateSystem') === 'cartesian2d';
+}
+export function findAxisModels(seriesModel) {
+  var axisModelMap = {
+    xAxisModel: null,
+    yAxisModel: null
+  };
+  zrUtil.each(axisModelMap, function (v, key) {
+    var axisType = key.replace(/Model$/, '');
+    var axisModel = seriesModel.getReferringComponents(axisType, SINGLE_REFERRING).models[0];
+    if (process.env.NODE_ENV !== 'production') {
+      if (!axisModel) {
+        throw new Error(axisType + ' "' + zrUtil.retrieve3(seriesModel.get(axisType + 'Index'), seriesModel.get(axisType + 'Id'), 0) + '" not found');
+      }
+    }
+    axisModelMap[key] = axisModel;
+  });
+  return axisModelMap;
+}

frontend/node_modules/echarts/lib/coord/cartesian/defaultAxisExtentFromData.js

@@ -0,0 +1,223 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as echarts from '../../core/echarts.js';
+import { createHashMap, each, hasOwn, keys, map } from 'zrender/lib/core/util.js';
+import { isCartesian2DSeries, findAxisModels } from './cartesianAxisHelper.js';
+import { getDataDimensionsOnAxis, unionAxisExtentFromData } from '../axisHelper.js';
+import { ensureScaleRawExtentInfo } from '../scaleRawExtentInfo.js';
+// A tricky: the priority is just after dataZoom processor.
+// If dataZoom has fixed the min/max, this processor do not need to work.
+// TODO: SELF REGISTERED.
+echarts.registerProcessor(echarts.PRIORITY.PROCESSOR.FILTER + 10, {
+  getTargetSeries: function (ecModel) {
+    var seriesModelMap = createHashMap();
+    ecModel.eachSeries(function (seriesModel) {
+      isCartesian2DSeries(seriesModel) && seriesModelMap.set(seriesModel.uid, seriesModel);
+    });
+    return seriesModelMap;
+  },
+  overallReset: function (ecModel, api) {
+    var seriesRecords = [];
+    var axisRecordMap = createHashMap();
+    prepareDataExtentOnAxis(ecModel, axisRecordMap, seriesRecords);
+    calculateFilteredExtent(axisRecordMap, seriesRecords);
+    shrinkAxisExtent(axisRecordMap);
+  }
+});
+function prepareDataExtentOnAxis(ecModel, axisRecordMap, seriesRecords) {
+  ecModel.eachSeries(function (seriesModel) {
+    if (!isCartesian2DSeries(seriesModel)) {
+      return;
+    }
+    var axesModelMap = findAxisModels(seriesModel);
+    var xAxisModel = axesModelMap.xAxisModel;
+    var yAxisModel = axesModelMap.yAxisModel;
+    var xAxis = xAxisModel.axis;
+    var yAxis = yAxisModel.axis;
+    var xRawExtentInfo = xAxis.scale.rawExtentInfo;
+    var yRawExtentInfo = yAxis.scale.rawExtentInfo;
+    var data = seriesModel.getData();
+    // If either axis controlled by other filter like "dataZoom",
+    // use the rule of dataZoom rather than adopting the rules here.
+    if (xRawExtentInfo && xRawExtentInfo.frozen || yRawExtentInfo && yRawExtentInfo.frozen) {
+      return;
+    }
+    seriesRecords.push({
+      seriesModel: seriesModel,
+      xAxisModel: xAxisModel,
+      yAxisModel: yAxisModel
+    });
+    // FIXME: this logic needs to be consistent with
+    // `coord/cartesian/Grid.ts#_updateScale`.
+    // It's not good to implement one logic in multiple places.
+    unionAxisExtentFromData(prepareAxisRecord(axisRecordMap, xAxisModel).condExtent, data, xAxis.dim);
+    unionAxisExtentFromData(prepareAxisRecord(axisRecordMap, yAxisModel).condExtent, data, yAxis.dim);
+  });
+}
+function calculateFilteredExtent(axisRecordMap, seriesRecords) {
+  each(seriesRecords, function (seriesRecord) {
+    var xAxisModel = seriesRecord.xAxisModel;
+    var yAxisModel = seriesRecord.yAxisModel;
+    var xAxis = xAxisModel.axis;
+    var yAxis = yAxisModel.axis;
+    var xAxisRecord = prepareAxisRecord(axisRecordMap, xAxisModel);
+    var yAxisRecord = prepareAxisRecord(axisRecordMap, yAxisModel);
+    xAxisRecord.rawExtentInfo = ensureScaleRawExtentInfo(xAxis.scale, xAxisModel, xAxisRecord.condExtent);
+    yAxisRecord.rawExtentInfo = ensureScaleRawExtentInfo(yAxis.scale, yAxisModel, yAxisRecord.condExtent);
+    xAxisRecord.rawExtentResult = xAxisRecord.rawExtentInfo.calculate();
+    yAxisRecord.rawExtentResult = yAxisRecord.rawExtentInfo.calculate();
+    // If the "xAxis" is set `min`/`max`, some data items might be out of the cartesian.
+    // then the "yAxis" may needs to calculate extent only based on the data items inside
+    // the cartesian (similar to what "dataZoom" did).
+    // A typical case is bar-racing, where bars ara sort dynamically and may only need to
+    // displayed part of the whole bars.
+    var data = seriesRecord.seriesModel.getData();
+    // For duplication removal.
+    var condDimMap = {};
+    var tarDimMap = {};
+    var condAxis;
+    var tarAxisRecord;
+    function addCondition(axis, axisRecord) {
+      // But for simplicity and safety and performance, we only adopt this
+      // feature on category axis at present.
+      var condExtent = axisRecord.condExtent;
+      var rawExtentResult = axisRecord.rawExtentResult;
+      if (axis.type === 'category' && (condExtent[0] < rawExtentResult.min || rawExtentResult.max < condExtent[1])) {
+        each(getDataDimensionsOnAxis(data, axis.dim), function (dataDim) {
+          if (!hasOwn(condDimMap, dataDim)) {
+            condDimMap[dataDim] = true;
+            condAxis = axis;
+          }
+        });
+      }
+    }
+    function addTarget(axis, axisRecord) {
+      var rawExtentResult = axisRecord.rawExtentResult;
+      if (axis.type !== 'category' && (!rawExtentResult.minFixed || !rawExtentResult.maxFixed)) {
+        each(getDataDimensionsOnAxis(data, axis.dim), function (dataDim) {
+          if (!hasOwn(condDimMap, dataDim) && !hasOwn(tarDimMap, dataDim)) {
+            tarDimMap[dataDim] = true;
+            tarAxisRecord = axisRecord;
+          }
+        });
+      }
+    }
+    addCondition(xAxis, xAxisRecord);
+    addCondition(yAxis, yAxisRecord);
+    addTarget(xAxis, xAxisRecord);
+    addTarget(yAxis, yAxisRecord);
+    var condDims = keys(condDimMap);
+    var tarDims = keys(tarDimMap);
+    var tarDimExtents = map(tarDims, function () {
+      return initExtent();
+    });
+    var condDimsLen = condDims.length;
+    var tarDimsLen = tarDims.length;
+    if (!condDimsLen || !tarDimsLen) {
+      return;
+    }
+    var singleCondDim = condDimsLen === 1 ? condDims[0] : null;
+    var singleTarDim = tarDimsLen === 1 ? tarDims[0] : null;
+    var dataLen = data.count();
+    // Time consuming, because this is a "block task".
+    // Simple optimization for the vast majority of cases.
+    if (singleCondDim && singleTarDim) {
+      for (var dataIdx = 0; dataIdx < dataLen; dataIdx++) {
+        var condVal = data.get(singleCondDim, dataIdx);
+        if (condAxis.scale.isInExtentRange(condVal)) {
+          unionExtent(tarDimExtents[0], data.get(singleTarDim, dataIdx));
+        }
+      }
+    } else {
+      for (var dataIdx = 0; dataIdx < dataLen; dataIdx++) {
+        for (var j = 0; j < condDimsLen; j++) {
+          var condVal = data.get(condDims[j], dataIdx);
+          if (condAxis.scale.isInExtentRange(condVal)) {
+            for (var k = 0; k < tarDimsLen; k++) {
+              unionExtent(tarDimExtents[k], data.get(tarDims[k], dataIdx));
+            }
+            // Any one dim is in range means satisfied.
+            break;
+          }
+        }
+      }
+    }
+    each(tarDimExtents, function (tarDimExtent, i) {
+      var dim = tarDims[i];
+      // FIXME: if there has been approximateExtent set?
+      data.setApproximateExtent(tarDimExtent, dim);
+      var tarAxisExtent = tarAxisRecord.tarExtent = tarAxisRecord.tarExtent || initExtent();
+      unionExtent(tarAxisExtent, tarDimExtent[0]);
+      unionExtent(tarAxisExtent, tarDimExtent[1]);
+    });
+  });
+}
+function shrinkAxisExtent(axisRecordMap) {
+  axisRecordMap.each(function (axisRecord) {
+    var tarAxisExtent = axisRecord.tarExtent;
+    if (tarAxisExtent) {
+      var rawExtentResult = axisRecord.rawExtentResult;
+      var rawExtentInfo = axisRecord.rawExtentInfo;
+      // Shink the original extent.
+      if (!rawExtentResult.minFixed && tarAxisExtent[0] > rawExtentResult.min) {
+        rawExtentInfo.modifyDataMinMax('min', tarAxisExtent[0]);
+      }
+      if (!rawExtentResult.maxFixed && tarAxisExtent[1] < rawExtentResult.max) {
+        rawExtentInfo.modifyDataMinMax('max', tarAxisExtent[1]);
+      }
+    }
+  });
+}
+function prepareAxisRecord(axisRecordMap, axisModel) {
+  return axisRecordMap.get(axisModel.uid) || axisRecordMap.set(axisModel.uid, {
+    condExtent: initExtent()
+  });
+}
+function initExtent() {
+  return [Infinity, -Infinity];
+}
+function unionExtent(extent, val) {
+  val < extent[0] && (extent[0] = val);
+  val > extent[1] && (extent[1] = val);
+}

frontend/node_modules/echarts/lib/coord/cartesian/prepareCustom.js

@@ -0,0 +1,74 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+/**
+ * AUTO-GENERATED FILE. DO NOT MODIFY.
+ */
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+import * as zrUtil from 'zrender/lib/core/util.js';
+function dataToCoordSize(dataSize, dataItem) {
+  // dataItem is necessary in log axis.
+  dataItem = dataItem || [0, 0];
+  return zrUtil.map(['x', 'y'], function (dim, dimIdx) {
+    var axis = this.getAxis(dim);
+    var val = dataItem[dimIdx];
+    var halfSize = dataSize[dimIdx] / 2;
+    return axis.type === 'category' ? axis.getBandWidth() : Math.abs(axis.dataToCoord(val - halfSize) - axis.dataToCoord(val + halfSize));
+  }, this);
+}
+export default function cartesianPrepareCustom(coordSys) {
+  var rect = coordSys.master.getRect();
+  return {
+    coordSys: {
+      // The name exposed to user is always 'cartesian2d' but not 'grid'.
+      type: 'cartesian2d',
+      x: rect.x,
+      y: rect.y,
+      width: rect.width,
+      height: rect.height
+    },
+    api: {
+      coord: function (data) {
+        // do not provide "out" param
+        return coordSys.dataToPoint(data);
+      },
+      size: zrUtil.bind(dataToCoordSize, coordSys)
+    }
+  };
+}